I just picked up an E-Mu 0404 for $50 on eBay for my daughter's DAW. It arrived in new condition, and that seems to be the going price for the 0404. For the money, it would be very hard to beat the 0404. There is also a lot of mod advice out there. I put about $50 worth of parts in an older 0404 and the sound improvement was quite noticeable. It is 24/194 and has both balanced/unbalanced outputs.